a real clear politics average of o ho polls shows president obama ahead by nearly three points. ohio's governor says it's enthusiasm that matters. >> god created pollsters to make -- to make astrologers look accurate, you know. it's all about turnout. >> president obama is expected to do well in ohio's big cities but the outcome could hing on rural and suburban areas. >> these are place where is the republican traditionally can be counted onto get 60 to 70% of the vote. so does the democrat cut into that margin by two, three, four points or not. >> in a last-minute schedule change, romney decided to head back to ohio on election day. >> one last visit to ohio doesn't change the fact that the people of this state have rejected what mitt romney is offering. >> the obama campaign says the president will spend his day in chicago doing mete media interviews. he has no plans to leave the state of illinois. in washington, nicole collins, fox news. >>> here at home, thousands of people have cast ballots at san francisco's city hall but still elections numbers, officials say the number o